One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,5)(3,6,8,7)(9,10,12,14)(11,13,15,16)(20,28)(25,29)(27,30)(31,32)(1,2)(3,7)(4,5)(6,8)(9,10)(11,13)(12,14)(15,16)(17,18,23,21)(19,26,22,24)(20,25,28,29)(27,32,30,31)(2,5)(6,7)(17,19,23,22)(18,24,21,26)(20,27,28,30)(25,31,29,32)(1,2)(3,6)(4,5)(7,8)(17,20,23,28)(18,25,21,29)(19,27,22,30)(24,31,26,32)(1,2)(3,7)(4,5)(6,8)(9,11,12,15)(10,13,14,16)(17,21,23,18)(19,24,22,26)(20,29,28,25)(27,31,30,32)(1,3,4,8)(2,6,5,7)(17,22,23,19)(18,26,21,24)(20,30,28,27)(25,32,29,31)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.